Predictability of DNA markers for population-level study based on species-level variation
Monday, January 18, 2016 - 22:11
in Biology & Nature
To answer the question of whether genes that show high levels of variability across different species could also be useful in population-level evolutionary studies, scientists tested the utility of numerous genes previously found to be useful in inferring relationships of cactus species. Because the rate of evolution -- and, thus, the amount of variation -- is not constant, a screening step is necessary to discover genomic regions with sufficient variability between individuals of the target species.